The seat is lowered in the front to help hold you in. The bike will try to wheelie when you shift at 150 mph. I use the Triumph seat with the driver backrest on mine to help hold me in. Even though your moving fast the torque when I shift into fifth gear is very strong. I am not sure how fast I am going as the needle is in the odometer then. These bikes are fast thats for sure. I have a little added boost to mine on top of the Carpenter goods inside. A little Project Bob,Art and I worked on